------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- P R J . P R O C -- -- -- -- B o d y -- -- -- -- Copyright (C) 2001-2004 Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with Err_Vars; use Err_Vars; with Namet; use Namet; with Opt; with Osint; use Osint; with Output; use Output; with Prj.Attr; use Prj.Attr; with Prj.Err; use Prj.Err; with Prj.Ext; use Prj.Ext; with Prj.Nmsc; use Prj.Nmsc; with Snames; with GNAT.Case_Util; use GNAT.Case_Util; with GNAT.HTable; package body Prj.Proc is Error_Report : Put_Line_Access := null; package Processed_Projects is new GNAT.HTable.Simple_HTable (Header_Num => Header_Num, Element => Project_Id, No_Element => No_Project, Key => Name_Id, Hash => Hash, Equal => "="); -- This hash table contains all processed projects procedure Add (To_Exp : in out Name_Id; Str : Name_Id); -- Concatenate two strings and returns another string if both -- arguments are not null string. procedure Add_Attributes (Project : Project_Id; Decl : in out Declarations; First : Attribute_Node_Id); -- Add all attributes, starting with First, with their default -- values to the package or project with declarations Decl. procedure Check (Project : in out Project_Id; Follow_Links : Boolean); -- Set all projects to not checked, then call Recursive_Check for the -- main project Project. Project is set to No_Project if errors occurred. function Expression (Project : Project_Id; From_Project_Node : Project_Node_Id; Pkg : Package_Id; First_Term : Project_Node_Id; Kind : Variable_Kind) return Variable_Value; -- From N_Expression project node From_Project_Node, compute the value -- of an expression and return it as a Variable_Value. function Imported_Or_Extended_Project_From (Project : Project_Id; With_Name : Name_Id) return Project_Id; -- Find an imported or extended project of Project whose name is With_Name function Package_From (Project : Project_Id; With_Name : Name_Id) return Package_Id; -- Find the package of Project whose name is With_Name procedure Process_Declarative_Items (Project : Project_Id; From_Project_Node : Project_Node_Id; Pkg : Package_Id; Item : Project_Node_Id); -- Process declarative items starting with From_Project_Node, and put them -- in declarations Decl. This is a recursive procedure; it calls itself for -- a package declaration or a case construction. procedure Recursive_Process (Project : out Project_Id; From_Project_Node : Project_Node_Id; Extended_By : Project_Id); -- Process project with node From_Project_Node in the tree. -- Do nothing if From_Project_Node is Empty_Node. -- If project has already been processed, simply return its project id. -- Otherwise create a new project id, mark it as processed, call itself -- recursively for all imported projects and a extended project, if any. -- Then process the declarative items of the project. procedure Recursive_Check (Project : Project_Id; Follow_Links : Boolean); -- If Project is not marked as checked, mark it as checked, call -- Check_Naming_Scheme for the project, then call itself for a -- possible extended project and all the imported projects of Project. --------- -- Add -- --------- procedure Add (To_Exp : in out Name_Id; Str : Name_Id) is begin if To_Exp = Types.No_Name or else To_Exp = Empty_String then -- To_Exp is nil or empty. The result is Str To_Exp := Str; -- If Str is nil, then do not change To_Ext elsif Str /= No_Name and then Str /= Empty_String then declare S : constant String := Get_Name_String (Str); begin Get_Name_String (To_Exp); Add_Str_To_Name_Buffer (S); To_Exp := Name_Find; end; end if; end Add; -------------------- -- Add_Attributes -- -------------------- procedure Add_Attributes (Project : Project_Id; Decl : in out Declarations; First : Attribute_Node_Id) is The_Attribute : Attribute_Node_Id := First; begin while The_Attribute /= Empty_Attribute loop if Attribute_Kind_Of (The_Attribute) = Single then declare New_Attribute : Variable_Value; begin case Variable_Kind_Of (The_Attribute) is -- Undefined should not happen when Undefined => pragma Assert (False, "attribute with an undefined kind"); raise Program_Error; -- Single attributes have a default value of empty string when Single => New_Attribute := (Project => Project, Kind => Single, Location => No_Location, Default => True, Value => Empty_String, Index => 0); -- List attributes have a default value of nil list when List => New_Attribute := (Project => Project, Kind => List, Location => No_Location, Default => True, Values => Nil_String); end case; Variable_Elements.Increment_Last; Variable_Elements.Table (Variable_Elements.Last) := (Next => Decl.Attributes, Name => Attribute_Name_Of (The_Attribute), Value => New_Attribute); Decl.Attributes := Variable_Elements.Last; end; end if; The_Attribute := Next_Attribute (After => The_Attribute); end loop; end Add_Attributes; ----------- -- Check -- ----------- procedure Check (Project : in out Project_Id; Follow_Links : Boolean) is begin -- Make sure that all projects are marked as not checked for Index in 1 .. Projects.Last loop Projects.Table (Index).Checked := False; end loop; Recursive_Check (Project, Follow_Links); end Check; ---------------- -- Expression -- ---------------- function Expression (Project : Project_Id; From_Project_Node : Project_Node_Id; Pkg : Package_Id; First_Term : Project_Node_Id; Kind : Variable_Kind) return Variable_Value is The_Term : Project_Node_Id := First_Term; -- The term in the expression list The_Current_Term : Project_Node_Id := Empty_Node; -- The current term node id Result : Variable_Value (Kind => Kind); -- The returned result Last : String_List_Id := Nil_String; -- Reference to the last string elements in Result, when Kind is List begin Result.Project := Project; Result.Location := Location_Of (First_Term); -- Process each term of the expression, starting with First_Term while The_Term /= Empty_Node loop The_Current_Term := Current_Term (The_Term); case Kind_Of (The_Current_Term) is when N_Literal_String => case Kind is when Undefined => -- Should never happen pragma Assert (False, "Undefined expression kind"); raise Program_Error; when Single => Add (Result.Value, String_Value_Of (The_Current_Term)); Result.Index := Source_Index_Of (The_Current_Term); when List => String_Elements.Increment_Last; if Last = Nil_String then -- This can happen in an expression like () & "toto" Result.Values := String_Elements.Last; else String_Elements.Table (Last).Next := String_Elements.Last; end if; Last := String_Elements.Last; String_Elements.Table (Last) := (Value => String_Value_Of (The_Current_Term), Index => Source_Index_Of (The_Current_Term), Display_Value => No_Name, Location => Location_Of (The_Current_Term), Flag => False, Next => Nil_String); end case; when N_Literal_String_List => declare String_Node : Project_Node_Id := First_Expression_In_List (The_Current_Term); Value : Variable_Value; begin if String_Node /= Empty_Node then -- If String_Node is nil, it is an empty list, -- there is nothing to do Value := Expression (Project => Project, From_Project_Node => From_Project_Node, Pkg => Pkg, First_Term => Tree.First_Term (String_Node), Kind => Single); String_Elements.Increment_Last; if Result.Values = Nil_String then -- This literal string list is the first term -- in a string list expression Result.Values := String_Elements.Last; else String_Elements.Table (Last).Next := String_Elements.Last; end if; Last := String_Elements.Last; String_Elements.Table (Last) := (Value => Value.Value, Display_Value => No_Name, Location => Value.Location, Flag => False, Next => Nil_String, Index => Value.Index); loop -- Add the other element of the literal string list -- one after the other String_Node := Next_Expression_In_List (String_Node); exit when String_Node = Empty_Node; Value := Expression (Project => Project, From_Project_Node => From_Project_Node, Pkg => Pkg, First_Term => Tree.First_Term (String_Node), Kind => Single); String_Elements.Increment_Last; String_Elements.Table (Last).Next := String_Elements.Last; Last := String_Elements.Last; String_Elements.Table (Last) := (Value => Value.Value, Display_Value => No_Name, Location => Value.Location, Flag => False, Next => Nil_String, Index => Value.Index); end loop; end if; end; when N_Variable_Reference | N_Attribute_Reference => declare The_Project : Project_Id := Project; The_Package : Package_Id := Pkg; The_Name : Name_Id := No_Name; The_Variable_Id : Variable_Id := No_Variable; The_Variable : Variable_Value; Term_Project : constant Project_Node_Id := Project_Node_Of (The_Current_Term); Term_Package : constant Project_Node_Id := Package_Node_Of (The_Current_Term); Index : Name_Id := No_Name; begin if Term_Project /= Empty_Node and then Term_Project /= From_Project_Node then -- This variable or attribute comes from another project The_Name := Name_Of (Term_Project); The_Project := Imported_Or_Extended_Project_From (Project => Project, With_Name => The_Name); end if; if Term_Package /= Empty_Node then -- This is an attribute of a package The_Name := Name_Of (Term_Package); The_Package := Projects.Table (The_Project).Decl.Packages; while The_Package /= No_Package and then Packages.Table (The_Package).Name /= The_Name loop The_Package := Packages.Table (The_Package).Next; end loop; pragma Assert (The_Package /= No_Package, "package not found."); elsif Kind_Of (The_Current_Term) = N_Attribute_Reference then The_Package := No_Package; end if; The_Name := Name_Of (The_Current_Term); if Kind_Of (The_Current_Term) = N_Attribute_Reference then Index := Associative_Array_Index_Of (The_Current_Term); end if; -- If it is not an associative array attribute if Index = No_Name then -- It is not an associative array attribute if The_Package /= No_Package then -- First, if there is a package, look into the package if Kind_Of (The_Current_Term) = N_Variable_Reference then The_Variable_Id := Packages.Table (The_Package).Decl.Variables; else The_Variable_Id := Packages.Table (The_Package).Decl.Attributes; end if; while The_Variable_Id /= No_Variable and then Variable_Elements.Table (The_Variable_Id).Name /= The_Name loop The_Variable_Id := Variable_Elements.Table (The_Variable_Id).Next; end loop; end if; if The_Variable_Id = No_Variable then -- If we have not found it, look into the project if Kind_Of (The_Current_Term) = N_Variable_Reference then The_Variable_Id := Projects.Table (The_Project).Decl.Variables; else The_Variable_Id := Projects.Table (The_Project).Decl.Attributes; end if; while The_Variable_Id /= No_Variable and then Variable_Elements.Table (The_Variable_Id).Name /= The_Name loop The_Variable_Id := Variable_Elements.Table (The_Variable_Id).Next; end loop; end if; pragma Assert (The_Variable_Id /= No_Variable, "variable or attribute not found"); The_Variable := Variable_Elements.Table (The_Variable_Id).Value; else -- It is an associative array attribute declare The_Array : Array_Id := No_Array; The_Element : Array_Element_Id := No_Array_Element; Array_Index : Name_Id := No_Name; begin if The_Package /= No_Package then The_Array := Packages.Table (The_Package).Decl.Arrays; else The_Array := Projects.Table (The_Project).Decl.Arrays; end if; while The_Array /= No_Array and then Arrays.Table (The_Array).Name /= The_Name loop The_Array := Arrays.Table (The_Array).Next; end loop; if The_Array /= No_Array then The_Element := Arrays.Table (The_Array).Value; Get_Name_String (Index); if Case_Insensitive (The_Current_Term) then To_Lower (Name_Buffer (1 .. Name_Len)); end if; Array_Index := Name_Find; while The_Element /= No_Array_Element and then Array_Elements.Table (The_Element).Index /= Array_Index loop The_Element := Array_Elements.Table (The_Element).Next; end loop; end if; if The_Element /= No_Array_Element then The_Variable := Array_Elements.Table (The_Element).Value; else if Expression_Kind_Of (The_Current_Term) = List then The_Variable := (Project => Project, Kind => List, Location => No_Location, Default => True, Values => Nil_String); else The_Variable := (Project => Project, Kind => Single, Location => No_Location, Default => True, Value => Empty_String, Index => 0); end if; end if; end; end if; case Kind is when Undefined => -- Should never happen pragma Assert (False, "undefined expression kind"); null; when Single => case The_Variable.Kind is when Undefined => null; when Single => Add (Result.Value, The_Variable.Value); when List => -- Should never happen pragma Assert (False, "list cannot appear in single " & "string expression"); null; end case; when List => case The_Variable.Kind is when Undefined => null; when Single => String_Elements.Increment_Last; if Last = Nil_String then -- This can happen in an expression such as -- () & Var Result.Values := String_Elements.Last; else String_Elements.Table (Last).Next := String_Elements.Last; end if; Last := String_Elements.Last; String_Elements.Table (Last) := (Value => The_Variable.Value, Display_Value => No_Name, Location => Location_Of (The_Current_Term), Flag => False, Next => Nil_String, Index => 0); when List => declare The_List : String_List_Id := The_Variable.Values; begin while The_List /= Nil_String loop String_Elements.Increment_Last; if Last = Nil_String then Result.Values := String_Elements.Last; else String_Elements.Table (Last).Next := String_Elements.Last; end if; Last := String_Elements.Last; String_Elements.Table (Last) := (Value => String_Elements.Table (The_List).Value, Display_Value => No_Name, Location => Location_Of (The_Current_Term), Flag => False, Next => Nil_String, Index => 0); The_List := String_Elements.Table (The_List).Next; end loop; end; end case; end case; end; when N_External_Value => Get_Name_String (String_Value_Of (External_Reference_Of (The_Current_Term))); declare Name : constant Name_Id := Name_Find; Default : Name_Id := No_Name; Value : Name_Id := No_Name; Default_Node : constant Project_Node_Id := External_Default_Of (The_Current_Term); begin if Default_Node /= Empty_Node then Default := String_Value_Of (Default_Node); end if; Value := Prj.Ext.Value_Of (Name, Default); if Value = No_Name then if not Opt.Quiet_Output then if Error_Report = null then Error_Msg ("?undefined external reference", Location_Of (The_Current_Term)); else Error_Report ("warning: """ & Get_Name_String (Name) & """ is an undefined external reference", Project); end if; end if; Value := Empty_String; end if; case Kind is when Undefined => null; when Single => Add (Result.Value, Value); when List => String_Elements.Increment_Last; if Last = Nil_String then Result.Values := String_Elements.Last; else String_Elements.Table (Last).Next := String_Elements.Last; end if; Last := String_Elements.Last; String_Elements.Table (Last) := (Value => Value, Display_Value => No_Name, Location => Location_Of (The_Current_Term), Flag => False, Next => Nil_String, Index => 0); end case; end; when others => -- Should never happen pragma Assert (False, "illegal node kind in an expression"); raise Program_Error; end case; The_Term := Next_Term (The_Term); end loop; return Result; end Expression; --------------------------------------- -- Imported_Or_Extended_Project_From -- --------------------------------------- function Imported_Or_Extended_Project_From (Project : Project_Id; With_Name : Name_Id) return Project_Id is Data : constant Project_Data := Projects.Table (Project); List : Project_List := Data.Imported_Projects; Result : Project_Id := No_Project; Temp_Result : Project_Id := No_Project; begin -- First check if it is the name of an extended project if Data.Extends /= No_Project and then Projects.Table (Data.Extends).Name = With_Name then return Data.Extends; else -- Then check the name of each imported project while List /= Empty_Project_List loop Result := Project_Lists.Table (List).Project; -- If the project is directly imported, then returns its ID if Projects.Table (Result).Name = With_Name then return Result; end if; -- If a project extending the project is imported, then keep -- this extending project as a possibility. It will be the -- returned ID if the project is not imported directly. declare Proj : Project_Id := Projects.Table (Result).Extends; begin while Proj /= No_Project loop if Projects.Table (Proj).Name = With_Name then Temp_Result := Result; exit; end if; Proj := Projects.Table (Proj).Extends; end loop; end; List := Project_Lists.Table (List).Next; end loop; pragma Assert (Temp_Result /= No_Project, "project not found"); return Temp_Result; end if; end Imported_Or_Extended_Project_From; ------------------ -- Package_From -- ------------------ function Package_From (Project : Project_Id; With_Name : Name_Id) return Package_Id is Data : constant Project_Data := Projects.Table (Project); Result : Package_Id := Data.Decl.Packages; begin -- Check the name of each existing package of Project while Result /= No_Package and then Packages.Table (Result).Name /= With_Name loop Result := Packages.Table (Result).Next; end loop; if Result = No_Package then -- Should never happen Write_Line ("package """ & Get_Name_String (With_Name) & """ not found"); raise Program_Error; else return Result; end if; end Package_From; ------------- -- Process -- ------------- procedure Process (Project : out Project_Id; Success : out Boolean; From_Project_Node : Project_Node_Id; Report_Error : Put_Line_Access; Follow_Links : Boolean := True) is Obj_Dir : Name_Id; Extending : Project_Id; Extending2 : Project_Id; begin Error_Report := Report_Error; Success := True; -- Make sure there is no projects in the data structure Projects.Set_Last (No_Project); Processed_Projects.Reset; -- And process the main project and all of the projects it depends on, -- recursively Recursive_Process (Project => Project, From_Project_Node => From_Project_Node, Extended_By => No_Project); if Project /= No_Project then Check (Project, Follow_Links); end if; -- If main project is an extending all project, set the object -- directory of all virtual extending projects to the object directory -- of the main project. if Project /= No_Project and then Is_Extending_All (From_Project_Node) then declare Object_Dir : constant Name_Id := Projects.Table (Project).Object_Directory; begin for Index in Projects.First .. Projects.Last loop if Projects.Table (Index).Virtual then Projects.Table (Index).Object_Directory := Object_Dir; end if; end loop; end; end if; -- Check that no extending project shares its object directory with -- the project(s) it extends. if Project /= No_Project then for Proj in 1 .. Projects.Last loop Extending := Projects.Table (Proj).Extended_By; if Extending /= No_Project then Obj_Dir := Projects.Table (Proj).Object_Directory; -- Check that a project being extended does not share its -- object directory with any project that extends it, directly -- or indirectly, including a virtual extending project. -- Start with the project directly extending it Extending2 := Extending; while Extending2 /= No_Project loop -- why is this code commented out ??? -- if ((Process_Languages = Ada_Language -- and then -- Projects.Table (Extending2).Ada_Sources_Present) -- or else -- (Process_Languages = Other_Languages -- and then -- Projects.Table (Extending2).Other_Sources_Present)) if Projects.Table (Extending2).Ada_Sources_Present and then Projects.Table (Extending2).Object_Directory = Obj_Dir then if Projects.Table (Extending2).Virtual then Error_Msg_Name_1 := Projects.Table (Proj).Name; if Error_Report = null then Error_Msg ("project % cannot be extended by a virtual " & "project with the same object directory", Projects.Table (Proj).Location); else Error_Report ("project """ & Get_Name_String (Error_Msg_Name_1) & """ cannot be extended by a virtual " & "project with the same object directory", Project); end if; else Error_Msg_Name_1 := Projects.Table (Extending2).Name; Error_Msg_Name_2 := Projects.Table (Proj).Name; if Error_Report = null then Error_Msg ("project % cannot extend project %", Projects.Table (Extending2).Location); Error_Msg ("\they share the same object directory", Projects.Table (Extending2).Location); else Error_Report ("project """ & Get_Name_String (Error_Msg_Name_1) & """ cannot extend project """ & Get_Name_String (Error_Msg_Name_2) & """", Project); Error_Report ("they share the same object directory", Project); end if; end if; end if; -- Continue with the next extending project, if any Extending2 := Projects.Table (Extending2).Extended_By; end loop; end if; end loop; end if; Success := Total_Errors_Detected <= 0; end Process; ------------------------------- -- Process_Declarative_Items -- ------------------------------- procedure Process_Declarative_Items (Project : Project_Id; From_Project_Node : Project_Node_Id; Pkg : Package_Id; Item : Project_Node_Id) is Current_Declarative_Item : Project_Node_Id := Item; Current_Item : Project_Node_Id := Empty_Node; begin -- For each declarative item while Current_Declarative_Item /= Empty_Node loop -- Get its data Current_Item := Current_Item_Node (Current_Declarative_Item); -- And set Current_Declarative_Item to the next declarative item -- ready for the next iteration. Current_Declarative_Item := Next_Declarative_Item (Current_Declarative_Item); case Kind_Of (Current_Item) is when N_Package_Declaration => -- Do not process a package declaration that should be ignored if Expression_Kind_Of (Current_Item) /= Ignored then -- Create the new package Packages.Increment_Last; declare New_Pkg : constant Package_Id := Packages.Last; The_New_Package : Package_Element; Project_Of_Renamed_Package : constant Project_Node_Id := Project_Of_Renamed_Package_Of (Current_Item); begin -- Set the name of the new package The_New_Package.Name := Name_Of (Current_Item); -- Insert the new package in the appropriate list if Pkg /= No_Package then The_New_Package.Next := Packages.Table (Pkg).Decl.Packages; Packages.Table (Pkg).Decl.Packages := New_Pkg; else The_New_Package.Next := Projects.Table (Project).Decl.Packages; Projects.Table (Project).Decl.Packages := New_Pkg; end if; Packages.Table (New_Pkg) := The_New_Package; if Project_Of_Renamed_Package /= Empty_Node then -- Renamed package declare Project_Name : constant Name_Id := Name_Of (Project_Of_Renamed_Package); Renamed_Project : constant Project_Id := Imported_Or_Extended_Project_From (Project, Project_Name); Renamed_Package : constant Package_Id := Package_From (Renamed_Project, Name_Of (Current_Item)); begin -- For a renamed package, set declarations to -- the declarations of the renamed package. Packages.Table (New_Pkg).Decl := Packages.Table (Renamed_Package).Decl; end; -- Standard package declaration, not renaming else -- Set the default values of the attributes Add_Attributes (Project, Packages.Table (New_Pkg).Decl, First_Attribute_Of (Package_Id_Of (Current_Item))); -- And process declarative items of the new package Process_Declarative_Items (Project => Project, From_Project_Node => From_Project_Node, Pkg => New_Pkg, Item => First_Declarative_Item_Of (Current_Item)); end if; end; end if; when N_String_Type_Declaration => -- There is nothing to process null; when N_Attribute_Declaration | N_Typed_Variable_Declaration | N_Variable_Declaration => if Expression_Of (Current_Item) = Empty_Node then -- It must be a full associative array attribute declaration declare Current_Item_Name : constant Name_Id := Name_Of (Current_Item); -- The name of the attribute New_Array : Array_Id; -- The new associative array created Orig_Array : Array_Id; -- The associative array value Orig_Project_Name : Name_Id := No_Name; -- The name of the project where the associative array -- value is. Orig_Project : Project_Id := No_Project; -- The id of the project where the associative array -- value is. Orig_Package_Name : Name_Id := No_Name; -- The name of the package, if any, where the associative -- array value is. Orig_Package : Package_Id := No_Package; -- The id of the package, if any, where the associative -- array value is. New_Element : Array_Element_Id := No_Array_Element; -- Id of a new array element created Prev_Element : Array_Element_Id := No_Array_Element; -- Last new element id created Orig_Element : Array_Element_Id := No_Array_Element; -- Current array element in the original associative -- array. Next_Element : Array_Element_Id := No_Array_Element; -- Id of the array element that follows the new element. -- This is not always nil, because values for the -- associative array attribute may already have been -- declared, and the array elements declared are reused. begin -- First, find if the associative array attribute already -- has elements declared. if Pkg /= No_Package then New_Array := Packages.Table (Pkg).Decl.Arrays; else New_Array := Projects.Table (Project).Decl.Arrays; end if; while New_Array /= No_Array and then Arrays.Table (New_Array).Name /= Current_Item_Name loop New_Array := Arrays.Table (New_Array).Next; end loop; -- If the attribute has never been declared add new entry -- in the arrays of the project/package and link it. if New_Array = No_Array then Arrays.Increment_Last; New_Array := Arrays.Last; if Pkg /= No_Package then Arrays.Table (New_Array) := (Name => Current_Item_Name, Value => No_Array_Element, Next => Packages.Table (Pkg).Decl.Arrays); Packages.Table (Pkg).Decl.Arrays := New_Array; else Arrays.Table (New_Array) := (Name => Current_Item_Name, Value => No_Array_Element, Next => Projects.Table (Project).Decl.Arrays); Projects.Table (Project).Decl.Arrays := New_Array; end if; end if; -- Find the project where the value is declared Orig_Project_Name := Name_Of (Associative_Project_Of (Current_Item)); for Index in Projects.First .. Projects.Last loop if Projects.Table (Index).Name = Orig_Project_Name then Orig_Project := Index; exit; end if; end loop; pragma Assert (Orig_Project /= No_Project, "original project not found"); if Associative_Package_Of (Current_Item) = Empty_Node then Orig_Array := Projects.Table (Orig_Project).Decl.Arrays; else -- If in a package, find the package where the -- value is declared. Orig_Package_Name := Name_Of (Associative_Package_Of (Current_Item)); Orig_Package := Projects.Table (Orig_Project).Decl.Packages; pragma Assert (Orig_Package /= No_Package, "original package not found"); while Packages.Table (Orig_Package).Name /= Orig_Package_Name loop Orig_Package := Packages.Table (Orig_Package).Next; pragma Assert (Orig_Package /= No_Package, "original package not found"); end loop; Orig_Array := Packages.Table (Orig_Package).Decl.Arrays; end if; -- Now look for the array while Orig_Array /= No_Array and then Arrays.Table (Orig_Array).Name /= Current_Item_Name loop Orig_Array := Arrays.Table (Orig_Array).Next; end loop; if Orig_Array = No_Array then if Error_Report = null then Error_Msg ("associative array value cannot be found", Location_Of (Current_Item)); else Error_Report ("associative array value cannot be found", Project); end if; else Orig_Element := Arrays.Table (Orig_Array).Value; -- Copy each array element while Orig_Element /= No_Array_Element loop -- Case of first element if Prev_Element = No_Array_Element then -- And there is no array element declared yet, -- create a new first array element. if Arrays.Table (New_Array).Value = No_Array_Element then Array_Elements.Increment_Last; New_Element := Array_Elements.Last; Arrays.Table (New_Array).Value := New_Element; Next_Element := No_Array_Element; -- Otherwise, the new element is the first else New_Element := Arrays.Table (New_Array).Value; Next_Element := Array_Elements.Table (New_Element).Next; end if; -- Otherwise, reuse an existing element, or create -- one if necessary. else Next_Element := Array_Elements.Table (Prev_Element).Next; if Next_Element = No_Array_Element then Array_Elements.Increment_Last; New_Element := Array_Elements.Last; else New_Element := Next_Element; Next_Element := Array_Elements.Table (New_Element).Next; end if; end if; -- Copy the value of the element Array_Elements.Table (New_Element) := Array_Elements.Table (Orig_Element); Array_Elements.Table (New_Element).Value.Project := Project; -- Adjust the Next link Array_Elements.Table (New_Element).Next := Next_Element; -- Adjust the previous id for the next element Prev_Element := New_Element; -- Go to the next element in the original array Orig_Element := Array_Elements.Table (Orig_Element).Next; end loop; -- Make sure that the array ends here, in case there -- previously a greater number of elements. Array_Elements.Table (New_Element).Next := No_Array_Element; end if; end; -- Declarations other that full associative arrays else declare New_Value : constant Variable_Value := Expression (Project => Project, From_Project_Node => From_Project_Node, Pkg => Pkg, First_Term => Tree.First_Term (Expression_Of (Current_Item)), Kind => Expression_Kind_Of (Current_Item)); -- The expression value The_Variable : Variable_Id := No_Variable; Current_Item_Name : constant Name_Id := Name_Of (Current_Item); begin -- Process a typed variable declaration if Kind_Of (Current_Item) = N_Typed_Variable_Declaration then -- Report an error for an empty string if New_Value.Value = Empty_String then Error_Msg_Name_1 := Name_Of (Current_Item); if Error_Report = null then Error_Msg ("no value defined for %", Location_Of (Current_Item)); else Error_Report ("no value defined for " & Get_Name_String (Error_Msg_Name_1), Project); end if; else declare Current_String : Project_Node_Id := First_Literal_String (String_Type_Of (Current_Item)); begin -- Loop through all the valid strings for -- the string type and compare to the string -- value. while Current_String /= Empty_Node and then String_Value_Of (Current_String) /= New_Value.Value loop Current_String := Next_Literal_String (Current_String); end loop; -- Report an error if the string value is not -- one for the string type. if Current_String = Empty_Node then Error_Msg_Name_1 := New_Value.Value; Error_Msg_Name_2 := Name_Of (Current_Item); if Error_Report = null then Error_Msg ("value { is illegal for typed string %", Location_Of (Current_Item)); else Error_Report ("value """ & Get_Name_String (Error_Msg_Name_1) & """ is illegal for typed string """ & Get_Name_String (Error_Msg_Name_2) & """", Project); end if; end if; end; end if; end if; if Kind_Of (Current_Item) /= N_Attribute_Declaration or else Associative_Array_Index_Of (Current_Item) = No_Name then -- Case of a variable declaration or of a not -- associative array attribute. -- First, find the list where to find the variable -- or attribute. if Kind_Of (Current_Item) = N_Attribute_Declaration then if Pkg /= No_Package then The_Variable := Packages.Table (Pkg).Decl.Attributes; else The_Variable := Projects.Table (Project).Decl.Attributes; end if; else if Pkg /= No_Package then The_Variable := Packages.Table (Pkg).Decl.Variables; else The_Variable := Projects.Table (Project).Decl.Variables; end if; end if; -- Loop through the list, to find if it has already -- been declared. while The_Variable /= No_Variable and then Variable_Elements.Table (The_Variable).Name /= Current_Item_Name loop The_Variable := Variable_Elements.Table (The_Variable).Next; end loop; -- If it has not been declared, create a new entry -- in the list. if The_Variable = No_Variable then -- All single string attribute should already have -- been declared with a default empty string value. pragma Assert (Kind_Of (Current_Item) /= N_Attribute_Declaration, "illegal attribute declaration"); Variable_Elements.Increment_Last; The_Variable := Variable_Elements.Last; -- Put the new variable in the appropriate list if Pkg /= No_Package then Variable_Elements.Table (The_Variable) := (Next => Packages.Table (Pkg).Decl.Variables, Name => Current_Item_Name, Value => New_Value); Packages.Table (Pkg).Decl.Variables := The_Variable; else Variable_Elements.Table (The_Variable) := (Next => Projects.Table (Project).Decl.Variables, Name => Current_Item_Name, Value => New_Value); Projects.Table (Project).Decl.Variables := The_Variable; end if; -- If the variable/attribute has already been -- declared, just change the value. else Variable_Elements.Table (The_Variable).Value := New_Value; end if; else -- Associative array attribute -- Get the string index Get_Name_String (Associative_Array_Index_Of (Current_Item)); -- Put in lower case, if necessary if Case_Insensitive (Current_Item) then GNAT.Case_Util.To_Lower (Name_Buffer (1 .. Name_Len)); end if; declare The_Array : Array_Id; The_Array_Element : Array_Element_Id := No_Array_Element; Index_Name : constant Name_Id := Name_Find; -- The name id of the index begin -- Look for the array in the appropriate list if Pkg /= No_Package then The_Array := Packages.Table (Pkg).Decl.Arrays; else The_Array := Projects.Table (Project).Decl.Arrays; end if; while The_Array /= No_Array and then Arrays.Table (The_Array).Name /= Current_Item_Name loop The_Array := Arrays.Table (The_Array).Next; end loop; -- If the array cannot be found, create a new -- entry in the list. As The_Array_Element is -- initialized to No_Array_Element, a new element -- will be created automatically later. if The_Array = No_Array then Arrays.Increment_Last; The_Array := Arrays.Last; if Pkg /= No_Package then Arrays.Table (The_Array) := (Name => Current_Item_Name, Value => No_Array_Element, Next => Packages.Table (Pkg).Decl.Arrays); Packages.Table (Pkg).Decl.Arrays := The_Array; else Arrays.Table (The_Array) := (Name => Current_Item_Name, Value => No_Array_Element, Next => Projects.Table (Project).Decl.Arrays); Projects.Table (Project).Decl.Arrays := The_Array; end if; -- Otherwise, initialize The_Array_Element as the -- head of the element list. else The_Array_Element := Arrays.Table (The_Array).Value; end if; -- Look in the list, if any, to find an element -- with the same index. while The_Array_Element /= No_Array_Element and then Array_Elements.Table (The_Array_Element).Index /= Index_Name loop The_Array_Element := Array_Elements.Table (The_Array_Element).Next; end loop; -- If no such element were found, create a new -- one and insert it in the element list, with -- the propoer value. if The_Array_Element = No_Array_Element then Array_Elements.Increment_Last; The_Array_Element := Array_Elements.Last; Array_Elements.Table (The_Array_Element) := (Index => Index_Name, Src_Index => Source_Index_Of (Current_Item), Index_Case_Sensitive => not Case_Insensitive (Current_Item), Value => New_Value, Next => Arrays.Table (The_Array).Value); Arrays.Table (The_Array).Value := The_Array_Element; -- An element with the same index already exists, -- just replace its value with the new one. else Array_Elements.Table (The_Array_Element).Value := New_Value; end if; end; end if; end; end if; when N_Case_Construction => declare The_Project : Project_Id := Project; -- The id of the project of the case variable The_Package : Package_Id := Pkg; -- The id of the package, if any, of the case variable The_Variable : Variable_Value := Nil_Variable_Value; -- The case variable Case_Value : Name_Id := No_Name; -- The case variable value Case_Item : Project_Node_Id := Empty_Node; Choice_String : Project_Node_Id := Empty_Node; Decl_Item : Project_Node_Id := Empty_Node; begin declare Variable_Node : constant Project_Node_Id := Case_Variable_Reference_Of (Current_Item); Var_Id : Variable_Id := No_Variable; Name : Name_Id := No_Name; begin -- If a project were specified for the case variable, -- get its id. if Project_Node_Of (Variable_Node) /= Empty_Node then Name := Name_Of (Project_Node_Of (Variable_Node)); The_Project := Imported_Or_Extended_Project_From (Project, Name); end if; -- If a package were specified for the case variable, -- get its id. if Package_Node_Of (Variable_Node) /= Empty_Node then Name := Name_Of (Package_Node_Of (Variable_Node)); The_Package := Package_From (The_Project, Name); end if; Name := Name_Of (Variable_Node); -- First, look for the case variable into the package, -- if any. if The_Package /= No_Package then Var_Id := Packages.Table (The_Package).Decl.Variables; Name := Name_Of (Variable_Node); while Var_Id /= No_Variable and then Variable_Elements.Table (Var_Id).Name /= Name loop Var_Id := Variable_Elements.Table (Var_Id).Next; end loop; end if; -- If not found in the package, or if there is no -- package, look at the project level. if Var_Id = No_Variable and then Package_Node_Of (Variable_Node) = Empty_Node then Var_Id := Projects.Table (The_Project).Decl.Variables; while Var_Id /= No_Variable and then Variable_Elements.Table (Var_Id).Name /= Name loop Var_Id := Variable_Elements.Table (Var_Id).Next; end loop; end if; if Var_Id = No_Variable then -- Should never happen, because this has already been -- checked during parsing. Write_Line ("variable """ & Get_Name_String (Name) & """ not found"); raise Program_Error; end if; -- Get the case variable The_Variable := Variable_Elements.Table (Var_Id).Value; if The_Variable.Kind /= Single then -- Should never happen, because this has already been -- checked during parsing. Write_Line ("variable""" & Get_Name_String (Name) & """ is not a single string variable"); raise Program_Error; end if; -- Get the case variable value Case_Value := The_Variable.Value; end; -- Now look into all the case items of the case construction Case_Item := First_Case_Item_Of (Current_Item); Case_Item_Loop : while Case_Item /= Empty_Node loop Choice_String := First_Choice_Of (Case_Item); -- When Choice_String is nil, it means that it is -- the "when others =>" alternative. if Choice_String = Empty_Node then Decl_Item := First_Declarative_Item_Of (Case_Item); exit Case_Item_Loop; end if; -- Look into all the alternative of this case item Choice_Loop : while Choice_String /= Empty_Node loop if Case_Value = String_Value_Of (Choice_String) then Decl_Item := First_Declarative_Item_Of (Case_Item); exit Case_Item_Loop; end if; Choice_String := Next_Literal_String (Choice_String); end loop Choice_Loop; Case_Item := Next_Case_Item (Case_Item); end loop Case_Item_Loop; -- If there is an alternative, then we process it if Decl_Item /= Empty_Node then Process_Declarative_Items (Project => Project, From_Project_Node => From_Project_Node, Pkg => Pkg, Item => Decl_Item); end if; end; when others => -- Should never happen Write_Line ("Illegal declarative item: " & Project_Node_Kind'Image (Kind_Of (Current_Item))); raise Program_Error; end case; end loop; end Process_Declarative_Items; --------------------- -- Recursive_Check -- --------------------- procedure Recursive_Check (Project : Project_Id; Follow_Links : Boolean) is Data : Project_Data; Imported_Project_List : Project_List := Empty_Project_List; begin -- Do nothing if Project is No_Project, or Project has already -- been marked as checked. if Project /= No_Project and then not Projects.Table (Project).Checked then -- Mark project as checked, to avoid infinite recursion in -- ill-formed trees, where a project imports itself. Projects.Table (Project).Checked := True; Data := Projects.Table (Project); -- Call itself for a possible extended project. -- (if there is no extended project, then nothing happens). Recursive_Check (Data.Extends, Follow_Links); -- Call itself for all imported projects Imported_Project_List := Data.Imported_Projects; while Imported_Project_List /= Empty_Project_List loop Recursive_Check (Project_Lists.Table (Imported_Project_List).Project, Follow_Links); Imported_Project_List := Project_Lists.Table (Imported_Project_List).Next; end loop; if Opt.Verbose_Mode then Write_Str ("Checking project file """); Write_Str (Get_Name_String (Data.Name)); Write_Line (""""); end if; Prj.Nmsc.Check (Project, Error_Report, Follow_Links); end if; end Recursive_Check; ----------------------- -- Recursive_Process -- ----------------------- procedure Recursive_Process (Project : out Project_Id; From_Project_Node : Project_Node_Id; Extended_By : Project_Id) is With_Clause : Project_Node_Id; begin if From_Project_Node = Empty_Node then Project := No_Project; else declare Processed_Data : Project_Data := Empty_Project; Imported : Project_List := Empty_Project_List; Declaration_Node : Project_Node_Id := Empty_Node; Name : constant Name_Id := Name_Of (From_Project_Node); begin Project := Processed_Projects.Get (Name); if Project /= No_Project then return; end if; Projects.Increment_Last; Project := Projects.Last; Processed_Projects.Set (Name, Project); Processed_Data.Name := Name; Get_Name_String (Name); -- If name starts with the virtual prefix, flag the project as -- being a virtual extending project. if Name_Len > Virtual_Prefix'Length and then Name_Buffer (1 .. Virtual_Prefix'Length) = Virtual_Prefix then Processed_Data.Virtual := True; end if; Processed_Data.Display_Path_Name := Path_Name_Of (From_Project_Node); Get_Name_String (Processed_Data.Display_Path_Name); Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len)); Processed_Data.Path_Name := Name_Find; Processed_Data.Location := Location_Of (From_Project_Node); Processed_Data.Display_Directory := Directory_Of (From_Project_Node); Get_Name_String (Processed_Data.Display_Directory); Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len)); Processed_Data.Directory := Name_Find; Processed_Data.Extended_By := Extended_By; Processed_Data.Naming := Standard_Naming_Data; Add_Attributes (Project, Processed_Data.Decl, Attribute_First); With_Clause := First_With_Clause_Of (From_Project_Node); while With_Clause /= Empty_Node loop declare New_Project : Project_Id; New_Data : Project_Data; begin Recursive_Process (Project => New_Project, From_Project_Node => Project_Node_Of (With_Clause), Extended_By => No_Project); New_Data := Projects.Table (New_Project); -- If we were the first project to import it, -- set First_Referred_By to us. if New_Data.First_Referred_By = No_Project then New_Data.First_Referred_By := Project; Projects.Table (New_Project) := New_Data; end if; -- Add this project to our list of imported projects Project_Lists.Increment_Last; Project_Lists.Table (Project_Lists.Last) := (Project => New_Project, Next => Empty_Project_List); -- Imported is the id of the last imported project. -- If it is nil, then this imported project is our first. if Imported = Empty_Project_List then Processed_Data.Imported_Projects := Project_Lists.Last; else Project_Lists.Table (Imported).Next := Project_Lists.Last; end if; Imported := Project_Lists.Last; With_Clause := Next_With_Clause_Of (With_Clause); end; end loop; Declaration_Node := Project_Declaration_Of (From_Project_Node); Recursive_Process (Project => Processed_Data.Extends, From_Project_Node => Extended_Project_Of (Declaration_Node), Extended_By => Project); Projects.Table (Project) := Processed_Data; Process_Declarative_Items (Project => Project, From_Project_Node => From_Project_Node, Pkg => No_Package, Item => First_Declarative_Item_Of (Declaration_Node)); -- If it is an extending project, inherit all packages -- from the extended project that are not explicitely defined -- or renamed. Also inherit the languages, if attribute Languages -- is not explicitely defined. if Processed_Data.Extends /= No_Project then Processed_Data := Projects.Table (Project); declare Extended_Pkg : Package_Id := Projects.Table (Processed_Data.Extends).Decl.Packages; Current_Pkg : Package_Id; Element : Package_Element; First : constant Package_Id := Processed_Data.Decl.Packages; Attribute1 : Variable_Id; Attribute2 : Variable_Id; Attr_Value1 : Variable; Attr_Value2 : Variable; begin while Extended_Pkg /= No_Package loop Element := Packages.Table (Extended_Pkg); Current_Pkg := First; loop exit when Current_Pkg = No_Package or else Packages.Table (Current_Pkg).Name = Element.Name; Current_Pkg := Packages.Table (Current_Pkg).Next; end loop; if Current_Pkg = No_Package then Packages.Increment_Last; Current_Pkg := Packages.Last; Packages.Table (Current_Pkg) := (Name => Element.Name, Decl => Element.Decl, Parent => No_Package, Next => Processed_Data.Decl.Packages); Processed_Data.Decl.Packages := Current_Pkg; end if; Extended_Pkg := Element.Next; end loop; -- Check if attribute Languages is declared in the -- extending project. Attribute1 := Processed_Data.Decl.Attributes; while Attribute1 /= No_Variable loop Attr_Value1 := Variable_Elements.Table (Attribute1); exit when Attr_Value1.Name = Snames.Name_Languages; Attribute1 := Attr_Value1.Next; end loop; if Attribute1 = No_Variable or else Attr_Value1.Value.Default then -- Attribute Languages is not declared in the extending -- project. Check if it is declared in the project being -- extended. Attribute2 := Projects.Table (Processed_Data.Extends).Decl.Attributes; while Attribute2 /= No_Variable loop Attr_Value2 := Variable_Elements.Table (Attribute2); exit when Attr_Value2.Name = Snames.Name_Languages; Attribute2 := Attr_Value2.Next; end loop; if Attribute2 /= No_Variable and then not Attr_Value2.Value.Default then -- As attribute Languages is declared in the project -- being extended, copy its value for the extending -- project. if Attribute1 = No_Variable then Variable_Elements.Increment_Last; Attribute1 := Variable_Elements.Last; Attr_Value1.Next := Processed_Data.Decl.Attributes; Processed_Data.Decl.Attributes := Attribute1; end if; Attr_Value1.Name := Snames.Name_Languages; Attr_Value1.Value := Attr_Value2.Value; Variable_Elements.Table (Attribute1) := Attr_Value1; end if; end if; end; Projects.Table (Project) := Processed_Data; end if; end; end if; end Recursive_Process; end Prj.Proc;